Steel rail welding seam flaw detection instrument

By designing a rail weld flaw detection instrument with an adjustable handle and automatic cleaning and coating function, the problem of inconvenient operation of traditional ultrasonic flaw detectors has been solved, and a convenient and efficient detection process has been achieved.

CN223926361UActive Publication Date: 2026-02-17BEIJING RUITE ENG CONSTR SUPERVISION CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520444268.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-13
Publication Date
2026-02-17
Estimated Expiration
2035-03-13

AI Technical Summary

Technical Problem

When using traditional ultrasonic flaw detectors to inspect rail welds, workers need to squat down to operate them, which is inconvenient.

Method used

Design a rail weld flaw detection instrument including a slide, a handle, an ultrasonic detector, and a detection probe. The slide is fastened to the rail, the handle is adjustable in angle and fixed, and it is equipped with a cleaning brush and a coating brush to achieve automatic cleaning and application of coupling agent.

Benefits of technology

Workers can operate the equipment without squatting down, making the testing process more convenient and adaptable to workers of different heights. Automated cleaning and coating improve testing efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223926361U_ABST
    Figure CN223926361U_ABST
Patent Text Reader

Abstract

The utility model discloses a steel rail welding seam flaw detection instrument, which comprises a sliding seat which is buckled on a steel rail in a C shape and is connected to the steel rail in a sliding manner; the handle is obliquely arranged on the sliding seat and is held by a worker; the ultrasonic detector is used for analyzing the data; the probe is arranged at the tail end of the sliding seat and used for abutting against the surface of the steel rail, and the detection probe is connected with the ultrasonic detector through a wire. Compared with the prior art, the detection probe has the following advantages and effects that the sliding seat buckled on the steel rail is arranged, and the lengthened handle capable of being held is additionally arranged, so that a worker can control the detection probe to slide on the surface of the steel rail without squatting on the ground, the detection process is more convenient, and the detection convenience is improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of rail flaw detection, and in particular to a rail weld flaw detection instrument. Background Technology

[0002] Rail weld flaw detection is a crucial step in ensuring railway transportation safety. It primarily aims to detect potential defects at rail welds, such as cracks, porosity, and slag inclusions, thereby preventing track breakage or other safety accidents caused by these issues.

[0003] Ultrasonic testing is one of the most commonly used methods for inspecting rail welds. It involves sending ultrasonic waves into the rail weld and receiving the reflected waveforms to analyze whether there are any defects inside the weld. Ultrasonic testing has advantages such as high sensitivity and ease of operation.

[0004] Traditional ultrasonic flaw detectors typically involve applying a coupling agent to the rail and then slowly sliding the probe connected to the ultrasonic flaw detector across the rail surface to perform the flaw detection operation. However, because the rail is relatively low, workers usually need to squat down to operate the equipment, making the flaw detection process inconvenient and requiring improvement. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a rail weld flaw detection instrument that is convenient to operate.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a rail weld flaw detection instrument, comprising:

[0007] The slide block is C-shaped and fastened to the rail, and is slidably connected to the rail;

[0008] The handle is tilted on the slide and is for the worker to hold;

[0009] An ultrasonic testing instrument is used to analyze data;

[0010] A detection probe is positioned at the tail end of the slide block and is used to contact the surface of the rail. The detection probe is connected to the ultrasonic testing instrument via a wire.

[0011] In a preferred embodiment, the present invention can be further configured such that: the handle is rotatably connected to the slide, and the slide is provided with a locking mechanism for fixing the handle.

[0012] In a preferred embodiment, the present invention can be further configured such that: the locking mechanism includes a locking plate and a locking rod, the locking plate is arc-shaped and passes through the handle, the locking rod passes through the handle, and the locking plate is provided with a row of locking holes for the locking rod to pass through.

[0013] In a preferred embodiment, the present invention can be further configured such that: a support frame is detachably connected to the front end of the slide, and a cleaning brush and a smearing brush are arranged sequentially from front to back on the support frame.

[0014] In a preferred embodiment, the present invention can be further configured such that: the slide is provided with a tube for the lower end of the support frame to be inserted, and the lower end of the support frame is provided with a hook that passes through the tube.

[0015] In a preferred embodiment, the present invention can be further configured such that: an end cap is provided on the support frame, a replenishment bottle is threadedly connected to the end cap, and an outlet tube is provided on the end cap embedded inside the application brush.

[0016] In a preferred embodiment, the present invention can be further configured such that a plurality of balls are rotatably connected to the inner sidewall of the slide.

[0017] In summary, this utility model has the following beneficial effects:

[0018] 1. By setting a sliding block that is fastened to the rail and adding an extended handle that can be gripped, workers can control the detection probe to slide on the rail surface without having to squat on the ground, making the detection process more convenient and improving the ease of detection.

[0019] 2. The tilt angle can be adjusted by setting a rotary handle to meet the needs of people of different heights and improve practicality;

[0020] 3. By setting up cleaning brushes and coating brushes, the surface of the rail can be automatically cleaned and the coupling agent can be automatically applied, making the inspection process more convenient and improving the ease of inspection. Attached Figure Description

[0021] Figure 1 This is a structural schematic diagram of an embodiment;

[0022] Figure 2 This is a schematic diagram of the connection relationship in the embodiment;

[0023] Figure 3 This is a schematic diagram of the support frame in an embodiment.

[0024] Reference numerals: 1. Slide; 11. Ball bearing; 12. Insertion tube; 2. Handle; 3. Ultrasonic detector; 4. Detection probe; 5. Locking mechanism; 51. Locking plate; 52. Locking rod; 53. Locking hole; 6. Support frame; 61. Hook; 62. Cleaning brush; 63. Applying brush; 64. End cap; 65. Replenishment bottle; 66. Discharge tube. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings.

[0026] like Figure 1 , Figure 2 As shown, a rail weld flaw detection instrument includes a slide 1, a handle 2, an ultrasonic detector 3, and a detection probe 4.

[0027] like Figure 1 , Figure 2 As shown, the slide block 1 is C-shaped and fastened to the rail, and is slidably connected to the rail. Several balls 11 are rotatably connected to the inner side wall of the slide block 1 to reduce friction and make the sliding detection process of the slide block 1 smoother.

[0028] like Figure 1 , Figure 2 As shown, the handle 2 is tilted on the slide 1 and is for the worker to grip. The handle 2 is rotatably connected to the slide 1, and the slide 1 is provided with a locking mechanism 5 for fixing the handle 2. The locking mechanism 5 includes a locking plate 51 and a locking rod 52. The locking plate 51 is arc-shaped and passes through the handle 2. The locking rod 52 passes through the handle 2. The locking plate 51 is provided with a row of locking holes 53 for the locking rod 52 to pass through.

[0029] like Figure 1 , Figure 2 As shown, the ultrasonic detector 3 is used to analyze the data, the detection probe 4 is set at the tail end of the slide 1 and is used to contact the surface of the rail, and the detection probe 4 is connected to the ultrasonic detector 3 through a wire.

[0030] When it is necessary to inspect the weld seams of the rail, the inspection probe 4 is installed on the slide 1, and then the slide 1 is fastened onto the rail, with the inspection probe 4 in contact with the rail surface. Then, the handle 2 is rotated until it reaches a comfortable angle. The locking rod 52 passes through the corresponding locking hole 53 on the handle 2 and the locking plate 51 to adjust and fix the angle position of the handle 2.

[0031] Then, the rail can be cleaned and a coupling agent applied. The control handle 2 then moves the slide 1 horizontally, causing the detection probe 4 to move synchronously, thus performing rail flaw detection. This allows workers to control the detection probe 4 to slide on the rail surface without having to squat on the ground, making the detection process more convenient and improving its ease of use.

[0032] like Figure 2 , Figure 3 As shown, a support frame 6 is detachably connected to the front end of the slide 1. The slide 1 is provided with a tube 12 for the lower end of the support frame 6 to be inserted into. The lower end of the support frame 6 is provided with a hook 61 that passes through the tube 12.

[0033] like Figure 2 , Figure 3 As shown, a cleaning brush 62 and an applicator brush 63 are arranged sequentially from front to back on the support frame 6. An end cap 64 is provided on the support frame 6, and a replenishment bottle 65 is threadedly connected to the end cap 64. An outlet tube 66 is embedded inside the applicator brush 63 on the end cap 64.

[0034] Before flaw detection is required, the lower end of the support frame 6 can be inserted into the tube 12 on the slide 1 and the support frame 6 can be fixed with the hook 61. Then, the replenishment bottle 65 is screwed into the end cap 64, and the slide 1 is fastened to the rail so that the cleaning brush 62 and the smearing brush 63 come into contact with the surface of the rail.

[0035] Then, control the slide block 1 to slide, first use the cleaning brush 62 to automatically clean the surface of the rail, then allow the coupling agent in the replenishment bottle 65 to flow into the coating brush 63 along the liquid outlet pipe 66, and evenly apply the coupling agent to the rail, realizing automatic cleaning of the rail surface and automatic application of coupling agent, making the detection process more convenient and improving the convenience of detection.

[0036] The specific embodiments are merely explanations of this utility model and are not intended to limit it. After reading this specification, those skilled in the art can make modifications to these embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this utility model.

Claims

1. A rail weld inspection instrument, characterised in that: Include: Slide (1), C-shaped buckle on the rail, and sliding connection on the rail; Handle (2), inclined to the slide (1), and for workers to hold; Ultrasonic detector (3) for data analysis; Detection probe (4) is arranged at the tail end of the slide (1), and is used for abutting against the surface of the rail, and the detection probe (4) is connected with the ultrasonic detector (3) through the wire.

2. A rail weld inspection instrument according to claim 1, characterised in that: The handle (2) is rotatably connected to the slide (1), and the slide (1) is provided with a locking mechanism (5) for fixing the handle (2).

3. A rail weld inspection instrument according to claim 2, characterised in that: The locking mechanism (5) includes a locking plate (51) and a locking rod (52), the locking plate (51) is arranged in a circular arc shape, and penetrates the handle (2), the locking rod (52) penetrates the handle (2), and the locking plate (51) is provided with a row of locking holes (53) for the locking rod (52) to pass through.

4. A rail weld inspection instrument according to claim 1, wherein: The front end of the slide (1) is detachably connected with a support frame (6), and the support frame (6) is provided with a cleaning brush (62) and a coating brush (63) from front to back.

5. A rail weld inspection instrument as defined in claim 4, wherein: The slide (1) is provided with a socket (12) for the lower end of the support frame (6) to be inserted, and the lower end of the support frame (6) is provided with a clamping hook (61) penetrating the socket (12).

6. A rail weld inspection instrument as defined in claim 5, wherein: The support frame (6) is provided with an end cover (64), the end cover (64) is threadedly connected with a liquid supplement bottle (65), and the end cover (64) is provided with a liquid outlet pipe (66) embedded in the inside of the coating brush (63).

7. A rail weld inspection instrument as defined in claim 1 wherein: The inner side wall of the slide (1) is rotatably connected with a plurality of ball bearings (11).